Homozygous plants have two identical copies of a single gene. Heterozygous plants have two copies of a single gene, but those copies are alleles, or different versions of that gene. Example of alleles controlling a trait for susceptibility to a lesion-causing disease.
Best Answer: Miley's dad is Billy Ray Cyrus. He is a country singer who also plays the guitar. His biggest hit is Achy Break Heart but other hit songs include Some Gave All (written about a soldier who gave his life fighting for his country) Busy Man, among others though none matched the success of Achy Breaky Heart.
Tish is the stepmother of Christopher Cyrus, who is the son of Billy Ray Cyrus from his previous relationship. Tish gave birth to her first child Brandi Glenn Helson, now Brandi Cyrus at the age of 20 in 1987. When she was 21, she had a son, Trace Dempsey Cyrus with her ex-husband in 1988.